Chapter 7:
Kurama, the de-facto ruler of Looking Glass City, tells Koto that their mother is the black rabbit.
Chapter 8:
Kurama has been intellectually curious from a young age, and loved it when his father praised his inventions.  He wants to find what he can do outside of the Looking Glass City.
Chapter 9:
The identities of Doctor Shouko and Fushimi are revealed...
So, tell me, have you found any 
clues as to what you're looking for?
Also sag, hast du Hinweise
 gefunden, wonach du suchst?
Entonces dime, ¿has encontrado 
una pista sobre lo que buscabas?
Pero dime, ¿has encontrado 
alguna pista sobre lo que buscas?
Au fait, tu penses pouvoir trouver 
ce que tu es venue chercher ?
Então me diga: encontrou alguma
pista do que está procurando?